package com.itheima.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.common.CustomException;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.mapper.CategoryMapper;
import com.itheima.reggie.mapper.EmployeeMapper;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishService;
import com.itheima.reggie.service.EmployeeService;
import com.itheima.reggie.service.SetmealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class CategoryServiceImpl extends
        ServiceImpl<CategoryMapper, Category> implements
        CategoryService {

    @Autowired
    private DishService dishService;

    @Autowired
    private SetmealService setmealService;

    @Override
    public void remove(Long id) {

        LambdaQueryWrapper<Dish> qwdish = new LambdaQueryWrapper<>();
        qwdish.eq(Dish::getCategoryId,id);
        //根据id查询相关分类中所属菜品
        int dishcount = dishService.count(qwdish);
        if(dishcount>0){
            throw new CustomException("当前分类关联了套餐，不允许删除");
        }

        LambdaQueryWrapper<Setmeal> qwsetmeal = new LambdaQueryWrapper<>();
        qwsetmeal.eq(Setmeal::getCategoryId,id);
        //根据id查询相关分类中所属菜品
        int Setmealcount = setmealService.count(qwsetmeal);
        if(Setmealcount>0){
            throw new CustomException("当前分类关联了套餐，不允许删除");
        }

        super.removeById(id);


    }
}
